Schroeder Amplification has announced three brand new products for musicians. The SA9+, SA9-REC and Formula 20 guitar amplifier heads are now available.
The SA9+ 40 Watt Head is an evolution of the award winning DB7/DB9/SA9. This high-headroom amp was originally designed with Nels Cline and Wilco. The amp is known for its clean sustain, chime, and clarity. Sonically, the SA9 and SA9+ are very similar and share the same control layout and functionality.
The SA9+ has a newly designed power transformer with additional taps. Additional power supply components in the SA9+ are used to convert and fine tune certain voltages used in the preamp. A Solid State rectifier circuit was developed specifically for the SA9+ model.
The SA9-REC 20 Watt Head was originally designed at the request of engineers who wanted the stage sound and feel of the SA9, at a more moderate volume that was better suited for the studio. The SA9-REC and SA9+ are sonically very similar and they share the same control layout and functionality.
The SA9-REC has a specially designed cathode bias circuit, power supply and solid state rectifier that assures that the amp has that “cranked amp” sound and feel at lower volumes. Additional power supply components, as in the SA9+, are used to convert and fine tune certain voltages in the preamp. Because of the reduced wattage, the “sweet spot” is easily attainable without exceedingly high SPL.
The Formula 20 Overdrive Head is known for its ability to sit right on the edge to where a player can use his pick/finger attack to make the amp shift from a chiming, relaxed and shimmering tone to one of full “chunk” grind. It is said to have all the qualities of the finest Marshall amps without the bad ones.
All the internal wiring connections in the Formula 20 Overdrive Head are made using a Litz coated, oxygen free copper wire of extreme purity. Unlike a generic “cloth covered” wire, it will not absorb airborne moisture, oxidize and/or degrade the signal over time. Specific components of the Formula 20 Overdrive Head are cryogenically treated to aid in their transparency.